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Development and Assessment of a Nearly Autonomous Management and Control System for Advanced Reactors

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Document pages: 45 pages

Abstract: This paper develops a Nearly Autonomous Management and Control (NAMAC) systemfor advanced reactors. The development process of NAMAC is characterized by athree layer-layer architecture: knowledge base, the Digital Twin (DT)developmental layer, and the NAMAC operational layer. The DT is described as aknowledge acquisition system from the knowledge base for intended uses in theNAMAC system. A set of DTs with different functions is developed withacceptable performance and assembled according to the NAMAC operationalworkflow to furnish recommendations to operators. To demonstrate the capabilityof the NAMAC system, a case study is designed, where a baseline NAMAC isimplemented for operating a simulator of the Experimental Breeder Reactor IIduring a single loss of flow accident. When NAMAC is operated in the trainingdomain, it can provide reasonable recommendations that prevent the peak fuelcenterline temperature from exceeding a safety criterion.

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